omap1: Add initcall checks for omap1 and booted board

Otherwise multi-omap1 configurations will fail.

Tested-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Signed-off-by: Tony Lindgren <tony@atomide.com>
diff --git a/arch/arm/mach-omap1/board-voiceblue.c b/arch/arm/mach-omap1/board-voiceblue.c
index f5992c2..b2838bf 100644
--- a/arch/arm/mach-omap1/board-voiceblue.c
+++ b/arch/arm/mach-omap1/board-voiceblue.c
@@ -83,6 +83,9 @@
 
 static int __init ext_uart_init(void)
 {
+	if (!machine_is_voiceblue())
+		return -ENODEV;
+
 	return platform_device_register(&serial_device);
 }
 arch_initcall(ext_uart_init);
@@ -236,6 +239,9 @@
 
 static int __init voiceblue_setup(void)
 {
+	if (!machine_is_voiceblue())
+		return -ENODEV;
+
 	/* Setup panic notifier */
 	atomic_notifier_chain_register(&panic_notifier_list, &panic_block);